CN107096877A - A kind of process for preventing white mould apperance incomplete - Google Patents
A kind of process for preventing white mould apperance incomplete Download PDFInfo
- Publication number
- CN107096877A CN107096877A CN201710187600.7A CN201710187600A CN107096877A CN 107096877 A CN107096877 A CN 107096877A CN 201710187600 A CN201710187600 A CN 201710187600A CN 107096877 A CN107096877 A CN 107096877A
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- CN
- China
- Prior art keywords
- temperature
- material bead
- apperance
- less
- shaping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Insulating Bodies (AREA)
Abstract
The invention discloses a kind of process for preventing white mould apperance incomplete, its process is as follows：Material bead is in 23 25 DEG C of temperature, and humidity, which is less than under 40% ventilated environment, places 1 2h；Material bead is when prefoam is molded, and pressure is 0.03 0.045Mpa in pre- hair bucket, and temperature is 95 105 DEG C of condition prefoam, and advance time was at 30 70 seconds；When material bead carries out curing shaping, temperature is 23 26 DEG C in curing storehouse, and aeration air and nitrogen make in storehouse that pressure is in 200 400kpa, and the curing time is in 3 5h；Material bead is in cooling, using vacuum cooled, makes cooling and shaping module temperature less than less than 80 DEG C, reduces the moisture in module；Material bead places 2 3h at ambient temperature when apperance is dried, and volatile matter during the drying of shaping apperance is lost 1% or so.
Description
Technical field
The present invention relates to auto parts and components shell cast technical field, more particularly to a kind of work for preventing white mould apperance incomplete
Process.
Background technology
Evaporative pattern is moulded in vain to be made to be the first link during whole lost foam casting, if the making of the white mould of evaporative pattern is lost
Lose and mean that the work of whole lost foam production line all that has been achieved is spoiled.For evaporative pattern, the white mould apperance of evaporative pattern is controlled
Incomplete work is most important.Therefore, a kind of it is proposed that process for preventing white mould apperance incomplete.
The content of the invention
To solve the defect of prior art, the invention discloses a kind of process for preventing white mould apperance incomplete.
The invention discloses a kind of process for preventing white mould apperance incomplete, its process is as follows：
（1）Material bead is in 23-25 DEG C of temperature, and humidity, which is less than under 40% ventilated environment, places 1-2h；
（2）Material bead is when prefoam is molded, and pressure is 0.03-0.045Mpa in pre- hair bucket, and temperature is 95-105 DEG C of condition
Prefoam, advance time was at 30-70 seconds；
（3）When material bead carries out curing shaping, temperature is 23-26 DEG C in curing storehouse, and aeration air and nitrogen make storehouse internal pressure
Power is in 200-400kpa, and the curing time is in 3-5h；
（4）Material bead is in cooling, using vacuum cooled, makes cooling and shaping module temperature less than less than 80 DEG C, reduces mould
Moisture in part；
（5）Material bead places 2-3h at ambient temperature when apperance is dried, and loses volatile matter during the drying of shaping apperance
1% or so.
Beneficial effect is：Control during pre- hair：Ensure that the bead sent in advance is bright and clean, moist during pre- hair, the bead sent in advance
Uniform in size, water content is few；Control during curing：Bead will make the bead at every place be attained by curing standard when curing, and cure
Good bead resilience is good.
Embodiment
The invention discloses a kind of process for preventing white mould apperance incomplete, its process is as follows：
（1）Material bead is in 23-25 DEG C of temperature, and humidity, which is less than under 40% ventilated environment, places 1-2h；
（2）Material bead is when prefoam is molded, and pressure is 0.03-0.045Mpa in pre- hair bucket, and temperature is 95-105 DEG C of condition
Prefoam, advance time was at 30-70 seconds；
（3）When material bead carries out curing shaping, temperature is 23-26 DEG C in curing storehouse, and aeration air and nitrogen make storehouse internal pressure
Power is in 200-400kpa, and the curing time is in 3-5h；
（4）Material bead is in cooling, using vacuum cooled, makes cooling and shaping module temperature less than less than 80 DEG C, reduces mould
Moisture in part；
（5）Material bead places 2-3h at ambient temperature when apperance is dried, and loses volatile matter during the drying of shaping apperance
1% or so.
Embodiment 1
The invention discloses a kind of process for preventing white mould apperance incomplete, its process is as follows：
（1）Material bead is in 23 DEG C of temperature, and humidity, which is less than under 40% ventilated environment, places 2h；
（2）Material bead is when prefoam is molded, and pressure is 0.03Mpa in pre- hair bucket, and temperature is 95 DEG C of condition prefoam, pre- hair
Time was at 70 seconds；
（3）When material bead carries out curing shaping, temperature is 23 DEG C in curing storehouse, and aeration air and nitrogen make pressure in storehouse exist
200kpa, the curing time is in 5h；
（4）Material bead is in cooling, using vacuum cooled, makes cooling and shaping module temperature less than less than 80 DEG C, reduces mould
Moisture in part；
（5）Material bead places 3h at ambient temperature when apperance is dried, and volatile matter during the drying of shaping apperance is lost 1%
Left and right.
Embodiment 2
The invention discloses a kind of process for preventing white mould apperance incomplete, its process is as follows：
（1）Material bead is in 25 DEG C of temperature, and humidity, which is less than under 40% ventilated environment, places 1h；
（2）Material bead is when prefoam is molded, and pressure is 0.045Mpa in pre- hair bucket, and temperature is 105 DEG C of condition prefoam, in advance
The hair time was at 30 seconds；
（3）When material bead carries out curing shaping, temperature is 26 DEG C in curing storehouse, and aeration air and nitrogen make pressure in storehouse exist
400kpa, the curing time is in 3h；
（4）Material bead is in cooling, using vacuum cooled, makes cooling and shaping module temperature less than less than 80 DEG C, reduces mould
Moisture in part；
（5）Material bead places 2h at ambient temperature when apperance is dried, and volatile matter during the drying of shaping apperance is lost 1%
Left and right.
Finally it should be noted that：Above example only not limits technology described in the invention to illustrate the present invention
Scheme；Therefore, although this specification with reference to each above-mentioned embodiment to present invention has been detailed description, this
Field it is to be appreciated by one skilled in the art that still can be modified to the present invention or equivalent substitution；And all do not depart from this
The technical scheme of the spirit and scope of invention and its improvement, it all should cover in scope of the presently claimed invention.
Claims (1)
1. a kind of process for preventing white mould apperance incomplete, it is characterised in that：Its process is as follows：
（1）Material bead is in 23-25 DEG C of temperature, and humidity, which is less than under 40% ventilated environment, places 1-2h；
（2）Material bead is when prefoam is molded, and pressure is 0.03-0.045Mpa in pre- hair bucket, and temperature is 95-105 DEG C of condition
Prefoam, advance time was at 30-70 seconds；
（3）When material bead carries out curing shaping, temperature is 23-26 DEG C in curing storehouse, and aeration air and nitrogen make storehouse internal pressure
Power is in 200-400kpa, and the curing time is in 3-5h；
（4）Material bead is in cooling, using vacuum cooled, makes cooling and shaping module temperature less than less than 80 DEG C, reduces mould
Moisture in part；
（5）Material bead places 2-3h at ambient temperature when apperance is dried, and loses volatile matter during the drying of shaping apperance
1% or so.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187600.7A CN107096877A (en) | 2017-03-27 | 2017-03-27 | A kind of process for preventing white mould apperance incomplete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710187600.7A CN107096877A (en) | 2017-03-27 | 2017-03-27 | A kind of process for preventing white mould apperance incomplete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107096877A true CN107096877A (en) | 2017-08-29 |
Family
ID=59675811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710187600.7A Pending CN107096877A (en) | 2017-03-27 | 2017-03-27 | A kind of process for preventing white mould apperance incomplete |
Country Status (1)
| Country | Link |
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| CN (1) | CN107096877A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202012A (en) * | 2018-11-20 | 2019-01-15 | 四川维珍高新材料有限公司 | A kind of low-carbon, the white mould pre-expansion process of super-low carbon stainless steel dispellable mould casting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1849820A1 (en) * | 2006-04-26 | 2007-10-31 | JSP Corporation | Acrylic resin expanded beads, acrylic resin expandable beads, and method for manufacturing foamed molded article of acrylic resin expanded beads |
| CN102029358A (en) * | 2010-12-14 | 2011-04-27 | 青岛顺联集装箱部件制造有限公司 | Expendable pattern for manufacturing corner fittings of container and manufacturing method and using method thereof |
| CN103372630A (en) * | 2012-04-25 | 2013-10-30 | 河北瑞丰动力缸体有限公司 | Evanescent mode production process of engine cylinder body |
| CN106180547A (en) * | 2016-06-29 | 2016-12-07 | 共享装备股份有限公司 | A kind of STMMA Yu EPS batch mixing makes the method for evaporative pattern sheet material |
| CN106238673A (en) * | 2016-09-20 | 2016-12-21 | 桃江新兴管件有限责任公司 | A kind of forming method of the low-density EPS apperance for lost foam casting |
| CN106238680A (en) * | 2016-08-30 | 2016-12-21 | 河北瑞欧消失模科技有限公司 | A kind of lost foam casting process of automobile saddle-type traction base |
-
2017
- 2017-03-27 CN CN201710187600.7A patent/CN107096877A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1849820A1 (en) * | 2006-04-26 | 2007-10-31 | JSP Corporation | Acrylic resin expanded beads, acrylic resin expandable beads, and method for manufacturing foamed molded article of acrylic resin expanded beads |
| CN102029358A (en) * | 2010-12-14 | 2011-04-27 | 青岛顺联集装箱部件制造有限公司 | Expendable pattern for manufacturing corner fittings of container and manufacturing method and using method thereof |
| CN103372630A (en) * | 2012-04-25 | 2013-10-30 | 河北瑞丰动力缸体有限公司 | Evanescent mode production process of engine cylinder body |
| CN106180547A (en) * | 2016-06-29 | 2016-12-07 | 共享装备股份有限公司 | A kind of STMMA Yu EPS batch mixing makes the method for evaporative pattern sheet material |
| CN106238680A (en) * | 2016-08-30 | 2016-12-21 | 河北瑞欧消失模科技有限公司 | A kind of lost foam casting process of automobile saddle-type traction base |
| CN106238673A (en) * | 2016-09-20 | 2016-12-21 | 桃江新兴管件有限责任公司 | A kind of forming method of the low-density EPS apperance for lost foam casting |
Non-Patent Citations (1)
| Title |
|---|
| 邓宏运等: "《消失模铸造及实型铸造技术手册》", 31 January 2013, 北京：机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202012A (en) * | 2018-11-20 | 2019-01-15 | 四川维珍高新材料有限公司 | A kind of low-carbon, the white mould pre-expansion process of super-low carbon stainless steel dispellable mould casting |
| CN109202012B (en) * | 2018-11-20 | 2020-08-04 | 四川维珍高新材料有限公司 | White mold pre-foaming process for low-carbon and ultra-low-carbon stainless steel lost foam casting |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |